Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevLett.110.260502
Title: Choice of Measurement as the Signal
Authors: Kalev, A. 
Mann, A.
Revzen, M.
Issue Date: 25-Jun-2013
Citation: Kalev, A., Mann, A., Revzen, M. (2013-06-25). Choice of Measurement as the Signal. Physical Review Letters 110 (26) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevLett.110.260502
Abstract: In classical mechanics, performing a measurement without reading the measurement outcome is equivalent to not exploiting the measurement at all. A nonselective measurement in the classical realm carries no information. Here we show that the situation is remarkably different when quantum mechanical systems are concerned. A nonselective measurement on one part of a maximally entangled pair can allow communication between two parties. In the proposed protocol, the signal is encoded in the choice of the measurement basis of one of the communicating parties, while the outcomes of the measurement are irrelevant for the communication and therefore may be discarded. Different choices for the (nonselective) measurement correspond to different signals. The implication of the study of measurements in quantum mechanics is considered. The scheme is studied in a Hilbert space of prime dimension. © 2013 American Physical Society.
Source Title: Physical Review Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/115643
ISSN: 00319007
DOI: 10.1103/PhysRevLett.110.260502
Appears in Collections:Staff Publications

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